Improvement in photographic cameras



J. STOCK.l Photographic .Ca'mera.

Patented Aug. 8, 1865.

/M/:Nroe

No. 49,3151` y UTA/5556 UNITED STATES JOHN sTOoK, OE NEW YOEK, N. Y.

IMPROVEMENT lN PHOTOGRAPHIC CAMERAS.

Specification forming part of Letters PatentNo. 49,315, dated August S, 1865.

To all whom 'it may concern:

Be it known that I, JOHN STOCK, of New York, in the county and State of New York, have invented a new and useful Improvement in Photographic Cameras; and I do hereby declare that the following is a full and exact de scription thereof, reference being had to the accompanying drawings, and to thcletters of ret'- erence marked thereon.

Figure l representsacross-section of my improved camera. Fig. Ii is an end View, and Fig. III a horizontal section, ofthe saine.

Similar letters represent similar parts.

The nature ot' my invention consists in the arrangement ofthe front ofthe box in such a manner that the same can be turned upon a horizontal axis passing through the center of the aperture, and also nponavertieal axis passing` through the same center; and, further, in the manner of attaching thelens tube or tubes to the front of the box by means of tubular anges or rings, forming a universal joint, for the purpose of being able to turn the lens or lensesinto any desired position to correspond with the plane ofthe picture to be taken.

In theaccornpanyingdrawings, Arepresents the'after part of the camera,and B the front of the box, against which the lens-tube (or tubes) is fastened. The t'ront of the boxB is connectedwith the after part through the bellows C, in the usual manner, to allow the distance ot' the plate-holder to he increased or diminished from the lens orlenses in the tubes. The after part of the box is arranged to slide on suitable ways, D D, attached to the bottom plate, E, and is secured in any desirable position by means of the screw F.

At the forward end ot' the bottom plate,E,a plate, Gr, is arranged, turning on a central pin, H, in a line with the center ot' the aperture J, or ofthe center of the lens-tube. By means of a set-screw, N, tast to ihe plate G, and working in a slotted plate, K, fast to the bottom plate, E, this plate Gr and the parts attached to the saine can be secured in any desired position.

Ou the sides of the plate Gr standards M M are arranged, provided with pins P P, in a line with the horizontal center or axis of the aperture J or of the lens-tube. Upon those pins P P the front of the box B is hung, capable or' turning, and a pin, R, fast to one side of the box B and passing through aslot in the standard M, secures said box B in any desired po sition. By this described arrangement of the box B it will be perceived that said box B can be turned upon a vertical axis as well as upon a horizontal axis corresponding with the vertical and horizontal axes of the aperture J, to which the lens-tube is tixed.

lf it should be found necessary to turn the lens farther than the motion of the front B will permit, (which will be seldom necessary,) I have arranged the tube itselt upon a universal joint, as follows: The lenstube in this case is attached to a central ring, S, capable of turning vertically on pins fitted to a surrounding ring T, which latter ring is capable of turning horizontally on pins fitted to the front ot' the box B, or to a surrounding metal ring, V, attached to the front ofthe box. On the inner side of the ring S a plate, a, is attached, and a corresponding plate, m, or frame, is attached to the inner side of the camera-box B, by which arrangement the entrance ot light into the camera is prevented when thelens-tuhe is moved in either direction.

To the ring S a projection, a., is attached, above which a projection, d, hinged to the ring T, is situated, and connected together by the screw 2,so as to tix and secure the position of the ring S as may be desired. A similar projection, o, is made on the ring T in connection with a projecting part, te, hinged to the metal ring V, or to the front of the box B, and connected togetherby the screw 3, so as to secure the ring T in any desired position.

What I claim as my inventiomand desireto secure by Letters Patent, is

l. The arrangement ot'the front ot the camera-box B so that the same turns upon a horizontal axis passing through the center ot' the aperture, and also upon avertical axis passing through the same center, the bellows yielding to the motion without affecting their operation.

2. The tubular lange or ring S,to which the lens-tube is attixed, in combination with the tubular ring T, acting as a universal joint, in the manner and for the purpose substantially as set forth.

J. STOCK.

Vitnesses:

HENRY E. ROEDER, NIooLAs PIKE. 

